公开(公告)号：US5515401A

公开(公告)日：1996-05-07

申请号：US463920

申请日：1995-06-05

申请人： Tetsuyoshi Takenaka ,  Hideto Furukawa ,  Nobutsugu Fujino ,  Satoru Chikuma ,  Atsushi Yamashita ,  Takeshi Inoue

发明人： Tetsuyoshi Takenaka ,  Hideto Furukawa ,  Nobutsugu Fujino ,  Satoru Chikuma ,  Atsushi Yamashita ,  Takeshi Inoue

IPC分类号： H04J3/06 ,  H04L1/00 ,  H04B7/00

CPC分类号： H04W56/0035 ,  H04J3/0638 ,  H04L1/00

摘要： A network control system for controlling a plurality of nodes respectively corresponding to, and provided in, a plurality of radio zones. Each node has a corresponding base station. A mobil station travels among the plurality of radio zones and communicates with the base station of a respective node when travelling in a radio zone corresponding to the respective node. Each base station transmits a transmission signal to adjacent nodes and receives transmission signals transmitted from the base stations of adjacent nodes. Each base station includes (a) a reception automatic frequency control unit receiving the transmission signals transmitted by base stations of adjacent nodes, and performing an automatic frequency control operation for each received transmission signal, (b) a frequency error detection unit detecting a frequency error between the automatic frequency controlled transmission signals and a frequency obtained by adding a nominal frequency gap between base stations to the transmission frequency of the transmission signal of the node corresponding to the frequency error detection unit, (c) an averaging unit spatially filtering the frequency errors to produce a spatial mean value, and (d) a transmission frequency control unit controlling the transmission frequency of the node corresponding to the transmission frequency control unit in accordance with the spatial mean value, to substantially eliminate the frequency errors.

摘要翻译： 一种网络控制系统，用于分别对应于并提供在多个无线电区域中的多个节点进行控制。 每个节点都有相应的基站。 移动站在多个无线电区域中行进，并且在与相应节点对应的无线电区域中行进时，与相应节点的基站进行通信。 每个基站向相邻节点发送传输信号，并接收从相邻节点的基站发送的传输信号。 每个基站包括：（a）接收自动频率控制单元，接收相邻节点的基站发送的发送信号，并对每个所接收的发送信号执行自动频率控制操作;（b）频率误差检测单元，检测频率误差 在自动频率控制传输信号之间和通过将基站之间的标称频率间隔相加到与频率误差检测单元相对应的节点的传输信号的传输频率而获得的频率，（c）空间滤波频率误差 以产生空间平均值，以及（d）发送频率控制单元，根据空间平均值来控制对应于发送频率控制单元的节点的发送频率，以基本上消除频率误差。

公开(公告)号：US5524029A

公开(公告)日：1996-06-04

申请号：US463671

申请日：1995-06-05

申请人： Tetsuyoshi Takenaka ,  Hideto Furukawa ,  Nobutsugu Fujino ,  Satoru Chikuma ,  Atsushi Yamashita ,  Takeshi Inoue

发明人： Tetsuyoshi Takenaka ,  Hideto Furukawa ,  Nobutsugu Fujino ,  Satoru Chikuma ,  Atsushi Yamashita ,  Takeshi Inoue

IPC分类号： H04J3/06 ,  H04L1/00 ,  H04B7/00

CPC分类号： H04W56/0035 ,  H04J3/0638 ,  H04L1/00

摘要： A network control system for controlling a plurality of nodes respectively corresponding to, and provided in, a plurality of radio zones. Each node has a corresponding base station, where a mobil station travels among the plurality of radio zones and communicates with the base station of a respective node when travelling in a radio zone corresponding to the respective node. Each base station transmits a transmission signal for the corresponding node to adjacent nodes, receives transmission signals transmitted from the base stations of adjacent nodes and spatially filters the received transmission signals. Each base station includes (a) a notification unit notifying the base stations of adjacent nodes of transmission timing information of the transmission signal of its own node, and (b) a correction unit receiving transmission timing information from the base stations of adjacent nodes indicating the timing of the transmission signals of the adjacent nodes, and correcting the timing of the transmission signal of its own node to minimize a difference between the timing of the transmission signal of its own node and the timing of the spatially filtered transmission signals received from the base stations of the adjacent nodes.

摘要翻译： 一种网络控制系统，用于分别对应于并提供在多个无线电区域中的多个节点进行控制。 每个节点具有对应的基站，其中移动站在多个无线电区域之间行进，并且在与相应节点对应的无线电区域中行进时与相应节点的基站进行通信。 每个基站向相邻节点发送相应节点的发送信号，接收从相邻节点的基站发送的发送信号，并对所接收的发送信号进行空间滤波。 每个基站包括（a）向相邻节点的基站通知其自身节点的发送信号的发送定时信息的通知单元，以及（b）从相邻节点的基站接收发送定时信息的校正单元， 对相邻节点的发送信号的定时进行校正，并且校正其自身节点的发送信号的定时，以最小化其自身节点的发送信号的定时与从基站接收的空间被滤波的发送信号的定时之间的差异 相邻节点的站。

公开(公告)号：US5526383A

公开(公告)日：1996-06-11

申请号：US400198

申请日：1995-03-03

申请人： Tetsuyoshi Takenaka ,  Hideto Furukawa ,  Nobutsugu Fujino ,  Satoru Chikuma ,  Atsushi Yamashita ,  Takeshi Inoue

发明人： Tetsuyoshi Takenaka ,  Hideto Furukawa ,  Nobutsugu Fujino ,  Satoru Chikuma ,  Atsushi Yamashita ,  Takeshi Inoue

IPC分类号： H04J3/06 ,  H04L1/00 ,  H04B7/00

CPC分类号： H04W56/0035 ,  H04J3/0638 ,  H04L1/00

摘要： A network control system for eliminating a relative error among control signals transmitted from nodes provided in radio zones respectively, a mobil station moving among the radio zones, each of the nodes comprising: a relative error detecting unit for detecting a relative error between an after-controlled transmitting control signal to be transmitted to adjacent nodes and a received control signal from an adjacent node; and a control unit for controlling a before-controlled transmitting control signal in such a way that the relative error becomes zero so as to output the after-controlled transmitting control signal.

摘要翻译： 一种网络控制系统，用于消除从在无线电区域中提供的节点发送的控制信号之间的相对误差，移动站在无线电区域之间移动，每个节点包括：相对误差检测单元， 控制的发送控制信号被发送到相邻节点，并且从相邻节点接收控制信号; 以及控制单元，用于以相对误差变为零的方式控制前控制的发送控制信号，以输出后控发送控制信号。

公开(公告)号：US5585805A

公开(公告)日：1996-12-17

申请号：US325207

申请日：1995-02-09

申请人： Tetsuyoshi Takenaka ,  Yoshiharu Tajima ,  Kazuo Kawabata

发明人： Tetsuyoshi Takenaka ,  Yoshiharu Tajima ,  Kazuo Kawabata

IPC分类号： G01S11/02 ,  G01S3/02

CPC分类号： G01S11/02

摘要： A travel velocity detector is installed in a mobile telephone station such as a portable telephone or a car telephone. The travel velocity detector adapts a received power level to a travel velocity of the mobile station. Two receiving circuits receive communication waves via respective antennas and output respective power levels E1 and E2 therefrom. The detected powers E1 and E2 are compared with each other to determine which of the powers is greater. A variation of the comparison result is then detected. The number of detected variations, corresponding to a switching frequency, is then counted during a preset time period. A relative travel velocity between the mobile station and an opposite transmitting station is estimated on the basis of the number of the counted variations.

摘要翻译： PCT No.PCT / JP93 / 01714 Sec。 371日期：1995年2月9日 102（e）日期1995年2月9日PCT 1993年11月24日PCT公布。 WO94 / 19704 PCT公开号 日期1994年9月1日行驶速度检测器安装在诸如便携式电话或汽车电话的移动电话站中。 移动速度检测器将接收的功率电平适配到移动台的行进速度。 两个接收电路经由各自的天线接收通信波，并从其输出相应的功率电平E1和E2。 将检测到的功率E1和E2相互比较以确定哪个功率更大。 然后检测比较结果的变化。 然后在预设时间段内对与切换频率相对应的检测到的变化的数量进行计数。 基于计数的变化的数量来估计移动站和相对的发送站之间的相对行进速度。

公开(公告)号：US5448751A

公开(公告)日：1995-09-05

申请号：US45015

申请日：1993-04-08

申请人： Tetsuyoshi Takenaka ,  Tadashi Nakamura ,  Yoshiharu Tajima

发明人： Tetsuyoshi Takenaka ,  Tadashi Nakamura ,  Yoshiharu Tajima

IPC分类号： H04W16/02 ,  H04W16/12 ,  H04Q7/00 ,  H04B15/00

CPC分类号： H04W16/12 ,  H04W16/02 ,  H04W24/00 ,  H04W4/02 ,  H04W64/006 ,  H04W72/02 ,  H04W72/0413

摘要： There is provided a method and an apparatus for assigning a radio channel between base and mobile stations in a mobile communication system, which provide advantages of first available and reuse partitioning systems and do not cause as great a proportional increase in a processing amount as an ARP system. A radio zone is divided into a number of regions having the same area which is equal to channel number N, usable in an entire system by concentric circles centering on a base station 12. Channels 1 to N.sub.s are allotted to the respective regions. Upon the issuance of a channel assignment request, a channel corresponding to the region where the mobile station is located or its neighboring channels is assigned preferentially.

摘要翻译： 提供了一种用于在移动通信系统中的基站和移动站之间分配无线电信道的方法和装置，其提供了第一可用和重用分区系统的优点，并且不会导致如ARP的处理量的成比例增加 系统。 无线电区域被划分为具有与信道号N相同的面积的多个区域，可以整个系统以基于基站12为中心的同心圆使用。通道1至Ns被分配给各个区域。 在发送信道分配请求时，优选分配对应于移动台所在区域或其相邻信道的信道。